InChI=1/C11H13ClN4O4/c1-6(17)13-9-4-3-7(5-8(9)12)14-10(18)15-16-11(19)20-2/h3-5H,1-2H3,(H,13,17)(H,16,19)(H2,14,15,18)/f/h13-16H 36FEC2D7F9CBAE13